Plazmaman LS3 CNC Billet Inlet Intake Manifold
Race Spec | LS3-Style Cylinder Heads
Race-Proven Airflow for High-Performance LS Builds
The Plazmaman LS3 Billet Inlet Intake Manifold is a race-spec, CNC-machined aluminum intake designed for serious street, strip, and competition LS builds utilizing LS3-style cylinder head ports. Developed using decades of motorsports experience combined with advanced SolidWorks Computational Fluid Dynamics (CFD) analysis, this intake delivers exceptional airflow efficiency, throttle response, and top-end power potential.
Plazmaman has been a leader in high-performance inlet manifold design since the early 1990s, and this LSx manifold represents the pinnacle of their engineering and race feedback. Its aggressive yet refined design makes it equally at home on high-horsepower race cars and elite show vehicles.
CNC Billet Construction & Advanced Design
Machined from high-quality billet aluminum, this intake manifold features a smooth internal runner design engineered to promote balanced airflow distribution across all cylinders. The robust billet construction ensures long-term durability under extreme boost and horsepower levels, backed by a lifetime structural guarantee for peace of mind.
The intake is compatible with 8 or 16 injector configurations, allowing flexibility for naturally aspirated, boosted, or high-fuel-demand applications. Customers can choose short or full-length fuel rail options, making this manifold adaptable to a wide range of engine combinations and power goals.
Throttle Body & Fuel System Compatibility
This manifold includes a billet throttle body adaptor compatible with OEM drive-by-wire throttle bodies or any LS bolt-pattern throttle body. Fuel rails are included and configured based on the selected injector setup, ensuring proper fitment and clean installation. A billet valley plate and oil pressure switch offset adaptor are also included for a complete, performance-focused package.
Built for Performance & Presentation
Beyond performance, the Plazmaman LS3 Billet Inlet Manifold offers a striking visual presence. Its clean, aggressive styling is perfectly suited for show vehicles and high-end engine bays. Finish options include Anodised Silver, Stealth Black, or Black Top with Silver Runners, allowing builders to match their engine bay aesthetic.
What’s Included
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Plazmaman CNC billet aluminum inlet manifold
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Fuel rails (to suit 8 or 16 injectors, short or full length)
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Throttle body adaptor (OEM DBW or LS bolt pattern)
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Billet valley plate
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Oil pressure switch offset adaptor
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Optional SFI-approved burst panel (additional cost)
Fitment & Compatibility
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Designed for LS3-style cylinder head ports
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Compatible with 8 or 16 injector configurations
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Supports OEM DBW and LS bolt-pattern throttle bodies
Important Notes
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3–5 business day lead time prior to shipping
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Heavy item — additional shipping charges may apply for 15–20+ kg boxed weight
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Optional SFI burst panel sold separately
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Flow-matched fuel injectors available separately from Plazmaman
For builders looking to maximize airflow, fueling capability, and visual impact in a high-horsepower LS setup, the Plazmaman LS3 Billet Inlet Intake Manifold delivers uncompromising performance and craftsmanship. Contact Beefcake Racing if you need help selecting injector configurations or supporting fuel system components.
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